the brown wire originally would have gone to one side of the ignition resistor [if you have one, maybe the other side goes to the wrong place] .... if you don't have a shop manual, big truck wiring diagram here from 57 should be the same to 59
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics